""ET TROJAN Win32/TrojanDropper.Agent.SRM Exfil via Discord""

SID: 2039417

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_10_13, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2022_10_13

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "|2a 2a|Browser|20|Cookies|2a 2a|"

  • Value: "Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d|"

  • Value: "|5f|Cookies|2e|txt|3b 20|filename|3d|"

  • Value: "|5f|Cookies|2e|txt|3b 20|filename|2a 3d|utf|2d|8|27 27|"

  • Value: "|5f|Cookies|2e|txt|0d 0a 0d 0a 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0d 0a|Modified|20|Time|20 20 20 20 20 3a 20|"

Within: 100

PCRE:

Special Options:

  • http_method

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

source